Classic Mode (SSBU)

Classic Mode loading screen in Super Smash Bros. Ultimate.

Classic Mode (勝ちあがり乱闘 Survival Smash) is a single-player mode in Super Smash Bros. Ultimate. Each character now has their own predetermined set of opponents and stages to face in this mode. A unique name is given to each character's path, and there may be special rules or conditions: for example, Ryu's path references Street Fighter II by using only Ω forms and Stamina mode alongside the fighters most closely representing the characters of Street Fighter II. It is different from the Classic Mode versions found in the two versions of SSB4, shown by the return to the style of Classic Mode that was in Melee and Brawl. Just like in Super Smash Bros. for Wii U, Classic Mode can also be challenged by two players. When playing with two players, the route will always be based on Player 1's character. 1v1 battles become 2v1v1 battles with two copies of the same opponent, usually in the second costume. In the case of Bowser in Peach's route, his 8th costume is used.

Similar to the Classic Modes for the previous entries, players can select an intensity level, indicated by the position of the lengthy mural. The highest allowed starting intensity is 5.0, and it will increase slightly, depending on how well the player does, after each victory, to a maximum of 9.9. Winning in fast times or with great dominance awards a "Nice Play!" label for the stage, and an intensity boost ranging from 0.6 to 1.2, depending also on how far along the player is in the game. Otherwise, the game's default intensity boost goes between 0.2 and 0.6, lower scores being awarded to longer battles with more damage taken. The layout consists of seven stages plus a bonus stage. Unlike previous entries, the opponent in the last stage is not always Master Hand or Crazy Hand; each fighter has a different encounter at the end. Scores are also present in Classic Mode, which is displayed alongside the player's Global Smash Power.

Players only have one stock, unlike previous installments. To continue, the player can either spend Gold, which lowers the intensity by 0.7 points, or use a Classic Mode ticket to keep the current intensity. Upon continuing, the match will start from where the player left off, but intensity will only rise to a maximum of 0.3 regardless of how quickly the CPU opponent is defeated afterwards. Using a Classic Mode ticket at any point during the run will stop the intensity from rising to 9.9, making the maximum possible intensity 9.8 for the rest of the run. However, it will not degrade a run already at intensity 9.9 if the ticket is used then.

Types of battles

Regular stage

Regular stages include Smash 1v1, 2v2, and Free-For-All battles where all enemy fighters must be defeated to proceed. Some variations include Giant Battles, where at least one opponent is giant, Metal Battles, where at least one opponent is metal, and Multi-Man Battles, where eight or less enemies are fought three at a time. When playing with two players, the 1v1 battles are replaced with 2v1v1 battles against two copies of the same opponent, and any allies granted by the match are overwritten by the co-op player.

Bonus Game

This is a challenge in the style of Race to the Finish, but rather than having a time limit, the player must outrun a void of darkness that consumes the stage behind them. Glowing orbs are scattered throughout the side-scrolling area which increase the player's score, some behind breakable blocks and bomb blocks that encourage the player to go out of their way as the void closes in. Some scattered physics objects impede progress in a similar manner to Trophy Rush. At the end of the stage, a cannon blasts the player into a portal that ends the Bonus Game.

Boss

Most fighters face a predetermined boss fight at the end of their route. The player must deplete the boss's HP in order to defeat them. In some cases, the boss is not the only challenge in the final stage; for example, Mario's and Captain Falcon's final stages features a regular battle on Final Destination against Bowser, who transforms into Giga Bowser and begins the boss fight upon his defeat. For Bowser and Mega Man, the boss is fought before the final stage. For Jigglypuff and Bayonetta, there is no true boss battle and the final stage instead consists of standard fights against a giant Donkey Kong and a giant Palutena, respectively. Presently, the Classic Mode bosses include Giga Bowser, Ganon, Master Hand, Crazy Hand, Dracula, Galleom, Marx, and Rathalos. Characters that are assigned either Master Hand or Crazy Hand for their boss battles will fight both bosses simultaneously at intensity levels of 7.0 or higher, while certain characters (typically those accompanied by CPU allies in their final stage) will be assigned both Hands outright regardless of intensity. The exceptions to these rules are Pikachu and Pokémon Trainer, who will always fight a lone Master Hand immediately following a duel with Mewtwo. After defeating Bowser or Mewtwo in the boss round, the character is given a Maximum Tomato.

Classic Mode titles

Fighter	Classic Mode title	Description
Mario	Let's-a Go! (世界をまたにかけて, Go around the World)	The title is Mario's famous catchphrase. The Japanese title and overall concept may be a reference to Super Mario Odyssey, where Mario goes around the world and visits different kingdoms. In a similar fashion to the Classic Modes of past games, Mario's opponents are groups of fighters from various universes fought on a home stage from that universe. The penultimate battle is against Bowser Jr. and the Koopalings, an allusion to the Koopalings' appearances as world bosses before the final boss fight with Bowser in various Super Mario titles. The boss of this route is Bowser, who transforms into Giga Bowser upon defeat (similar to the end of Melee's Adventure Mode), which pays homage to his status as Mario's greatest enemy and final challenge to defeat.
Donkey Kong	Journey to New Donk City (ドンキーコング ニュードンクへ行く, Donkey Kong Goes to New Donk)	Refers to New Donk City Hall being the final stage. The stages begin in the jungle before taking a plane to more urban locations, including the Onett and Moray Towers stages. The boss of this route is Master Hand, uniquely set on Omega Form New Donk City Hall rather than Final Destination. Diddy Kong is on the player's team after the first round, which references the original Donkey Kong Country.
Link	A Quest to Seal the Darkness (闇を切り裂く対魔剣, The Blade of Evil's Bane that Slashes the Darkness)	The title references the main plot of most games in the Legend of Zelda series, where Link must seal away Ganon. Link's opponents on this route are all affiliated with darkness, including Ganondorf, with the penultimate battle being against Dark Link. The boss of this route is Ganon.
Samus	Another Planet, Another Bounty (異星の深淵, Abyss of Another Planet)	Each battle is set on a Metroid series stage and involves fighting a monstrous character. The boss of this route is Master Hand.
Dark Samus	The Great Poison Given Form (仲間に牙剥く精神汚染, The Mental Corruption that Threatens the Companion)	Refers to Phazon (the essence of Metroid Prime and Dark Samus), which is named "the Great Poison" by the Chozo in Metroid Prime. Dark Samus faces off against protagonist characters while she is teamed up with dark/evil/corrupted variants of characters from their series (for example, Dark Samus is teamed up with Ken in his Violent Ken alternate costume, and together they fight Ryu). The penultimate round is a Free-for-All against Samus and Ridley (likely in a reference to Metroid Prime 3). The boss of this route is Master Hand.
Yoshi	Jurassic Journey (ジュラシックアイランド, Jurassic Island)	Yoshi's opponents are all reptilian-themed. His penultimate battle is against Bowser, referencing his role as the final boss in the Yoshi's Island games. The boss of this route is Rathalos.
Kirby	Gourmet Clash (激突！グルメバトル, Crash! Gourmet Battle)	Refers to the Gourmet Race mode from Kirby Super Star. Kirby's opponents are characters who, like Kirby, love to eat things, including their enemies. For each battle, Kirby and his opponent each spawn with 35% damage and several food items appear on the stage as the match begins. Additionally, other food-based items (such as Banana Peels and Superspicy Curry) appear more often. The penultimate battle is against King Dedede on Fountain of Dreams, referencing both Kirby's Adventure and Gourmet Race. The boss of this route is Marx.
Fox	Spaceborne Smash (無限の宇宙, The Infinite Universe)	Fox's opponents in this route are characters associated with space or other planets. His penultimate battle is with Wolf on Venom, referencing their battle in Star Fox 64 as well as Team Star Fox's frequent final destination. The boss of this route is Master Hand, likely in reference to the battle against Andross in Star Fox 64, in which his disembodied hands guard his face from attack.
Pikachu	I Choose You! (大乱闘ポケットモンスターズ, Great Fray Pocket Monsters)	Refers to Ash Ketchum's signature catchphrase in the Pokémon anime, which doubles as the title of the first episode and the 20th movie. The Japanese title refers to the Japanese name of the Super Smash Bros. series: 大乱闘スマッシュブラザーズ, Great Fray Smash Brothers. The opponents are Pokémon characters from all across the Super Smash Bros. series. The final battle is against Mewtwo, immediately followed by Master Hand. Only Poké Balls appear throughout this route.
Luigi	Luigi's Nightmares (こっちに来ないで、コワい人！, Stay away, scary people!)	All of Luigi's opponents are scary characters, or characters using a scary alternate costume (such as Dark Link), which is a reference to the Luigi's Mansion games and Luigi's tendency to be easily frightened. The boss of this route is Dracula.
Ness	Home to Onett! (ホームシック！ オネットに帰ろう, Homesick! Let's Go Back to Onett)	The title reflects Ness's journey in EarthBound in reverse from Magicant to Onett and refers to Ness's Homesick status effect from EarthBound; it may also refer to the end of the EarthBound game, where the game doesn't end until Ness returns to Onett after saving the world. The boss of this route is Master Hand.
Captain Falcon	Up Close and Personal (戦いの基本は接近戦, Close-ranged combat is the basis of battle)	Captain Falcon fights opponents who specialize in close-range combat, such as Ganondorf and Roy. The boss of this route is Bowser, who transforms into Giga Bowser upon defeat (similar to the end of Melee's Adventure Mode).
Jigglypuff	All Original, All 64 (64オールスターズ, 64 All-Stars)	Refers to Jigglypuff being one of the original 12. It fights all of the other original characters on the stages returning from 64, in a similar manner to the 1P Game. The penultimate battle is a free-for-all with the four unlockable characters, while the final battle is against Giant Donkey Kong, referencing the unique battle in the 1P Game.
Peach	No Damsel in Distress (さらわれ姫から卒業！, Graduating from a Kidnapped Princess!)	Peach fights against would-be kidnappers such as Bowser's family, Donkey Kong (in his "classic" costume), and Ganondorf with the penultimate battle against her own captor Bowser. If this route is played with two players, Bowser appears with a copy in his eighth costume, referencing The Lost Levels. The boss of this route is Master Hand.
Daisy	Sarasaland Represent! (戦場のプリンセス, Princess of the Battlefield)	Refers to Daisy ruling over the kingdom of Sarasaland. Daisy's opponents are all princesses in their respective franchises. The boss of this route is Master Hand.
Bowser	The Red One. Every Red One! (因縁の赤いヤツ, The Fated Red Guy)	Refers to Bowser's long-time rivalry with Mario. Bowser’s opponents in this route are all affiliated with the color red, with the penultimate boss battle being against Rathalos. The final battle is against Mario, who transforms into Metal Mario upon defeat.
Ice Climbers	Duos for Days (ベストパートナー, Best Partner)	The Ice Climbers fight two opponents per stage, all of which are certain iconic duos in their games. The bosses of this route are Master Hand and Crazy Hand.
Sheik	Masquerade (仮面舞踏会, Masquerade)	Sheik's opponents are characters who wear masks or other forms of headwear to conceal their identity, such as Meta Knight and Captain Falcon. The boss of this route is Master Hand.
Zelda	Wisdom Prevails (狙われたトライフォース, Targeted Triforce)	Zelda's opponents are all villains and antagonists. The boss of this route is Ganondorf, who transforms into Ganon upon defeat.
Dr. Mario	Colorful Treatment Plan (いろいろ三色大作戦, Great Plan of Three Varying Colors)	Dr. Mario's opponents are all trios of the same character in red, blue, and yellow costumes, referencing the three viruses: Fever, Chill, and Weird. The penultimate battle is against three Warios, which may be an intentional reference to Wario's role as a secondary villain in Dr. Mario 64's story. The boss of this route is Master Hand.
Pichu	Lightweight Fracas (ふわっとバトル, Floaty Battle)	Refers to Pichu fighting lightweight characters. The stage selections are also sky-based, such as Peach's Castle and Skyloft. The boss of this route is Master Hand.
Falco	Soar above the Darkness (光あるところに, Where There is Light)	Falco's opponents are "dark" characters, such as Dark Samus and Captain Falcon in his Blood Falcon alternate costume. The boss of this route is Crazy Hand.
Marth	A Kingdom of Dragons (竜の王国, A Kingdom of Dragons)	Refers to how Marth fights against Dolhr, a kingdom ruled by the dragon Medeus, in his games. Marth fights draconian characters on fantasy stages hailing from Fire Emblem or The Legend of Zelda. The boss of this route is Rathalos.
Lucina	A Path of Heroes (歴代の英雄, Heroes of Many Generations)	All of Lucina's opponents are Fire Emblem characters in reverse chronological order, likely referencing her traveling to the past in Awakening. The boss of this route is Master Hand.
Young Link	Hyrule Smash! (ハイラル乱闘！, Hyrule Battle!)	Young Link's opponents are characters from The Legend of Zelda universe, including Dark Young Link and a quartet of multicolored Toon Links, referencing The Legend of Zelda: Four Swords. The boss of this route is Ganon.
Ganondorf	Encroaching Darkness (終わりの始まり, The Beginning of the End)	Ganondorf's opponents are all heroes and protagonists, culminating in a penultimate battle with Link and Zelda. The boss of this route is Master Hand.
Mewtwo	Psychic Control (洗脳による支配, Domination by Brainwashing)	Refers to Mewtwo's intense psychic powers and its ability to mind control others into doing its bidding, such as with Nurse Joy in the first movie. The battles are a series of Team Battles where one of the opponents will join the player in the following battle. Some opponents are characters who have been mind-controlled in their own games, such as Richter. The bosses of this route are Master Hand and Crazy Hand, with Pikachu as the player's partner.
Roy	A Journey of Swords (異界の剣士, Otherworldly Swordfighters)	The title refers to Roy fighting only sword-using opponents. The Japanese title mentions the concept of Outrealms from more recent Fire Emblem games. The boss of this route is Master Hand.
Chrom	Fight as One (運命か、絆か, Is it fate, or a bond?)	Chrom's route begins with a one-on-one match against Lucina on Arena Ferox, referencing their duel in Fire Emblem Awakening. Battles from Round 2 onwards are Team Battles where Chrom's teammate alternates between Lucina in even-numbered rounds and either male or female Robin in odd-numbered rounds. The bosses of this route are Master Hand and Crazy Hand, with female Robin as the player's partner. The Japanese name comes from Chapter 23 of Fire Emblem Awakening, known as Invisible Ties in the English localization.
Mr. Game & Watch	A Long Legacy (母川回帰, Return to the Origin)	Mr. Game & Watch fights classic characters on retro stages in reverse chronological order, starting with Kirby on the Dream Land GB stage. The penultimate battle is a multi-man of Mr. Game & Watches on the Flat Zone X stage, similar to the finale of All-Star Mode in Melee. The boss of this route is Master Hand.
Meta Knight	Two Sides of the Same Coin (表裏一体, Two Sides of the Same Coin)	References Meta Knight's tendency to act as both ally and adversary in the Kirby games. Meta Knight's fights are free-for-alls against fighters and their dark counterparts (Blood Falcon, Dark Samus, etc.). His penultimate battle is with another pair of Meta Knights in alternate costumes representing Galacta Knight, his ultimate opponent in Meta Knightmare Ultra, and Dark Meta Knight, his evil doppelganger in Kirby and the Amazing Mirror, though if playing as one of these alternate costumes, the second opponent will become Meta Knight in his original costume instead. The bosses of this route are Master Hand and Crazy Hand, likewise two sides of the same coin.
Pit	Fighting for the Goddess (群がる悪を浄化する‼, Purify the Forces of Evil!!)	All battles are analogous to fights in Kid Icarus: Uprising (i.e. Ganondorf as Magnus, Bayonetta as Medusa, etc.). The bosses of this route are Master Hand and Crazy Hand (likely a reference to the giant form of Hades in the final battle of Uprising), with Dark Pit as the player's partner.
Dark Pit	Created Warriors (つくられた戦士, Created Warriors)	Refers to Dark Pit's origins as a copy of Pit in Kid Icarus: Uprising. Dark Pit's opponents are all genetic or magical clones: Mewtwo, Dark Samus, Dark Link, Cloud, and Blood Falcon. His penultimate battle is against Pit. The boss of this route is Galleom, with Pit as the player's teammate.
Zero Suit Samus	Grapplers! Whips! Claws! (ワイヤーを使いこなせ, Master the Wire)	Zero Suit Samus's opponents are characters who use tether recoveries. Grapplers represent Samus and her dark counterpart, Whips refer to Simon and Richter and possibly Ivysaur as well, and Claws refer to Young Link and Toon Link's Hookshots. The boss of this route is Master Hand.
Wario	I'm-a Gonna Win! (オレ様怪力ナンバーワン！, My super strength is number one!)	Refers to Wario's catchphrase in the international version of Mario Kart 64: "I'm-a Wario! I'm-a gonna win!" Wario's opponents are those with brute strength, such as King K. Rool and Incineroar. The boss of this route is Master Hand.
Snake	Weapons and Equipment OSP (装備あれば憂いなし, If there's equipment, you don't have to worry)	"OSP" stands for "On Site Procurement", referencing Snake's need to obtain weapons and gear within the mission area in the Metal Gear series. Projectile weapons and explosive items make up most of the item spawns on this route, and Snake's opponents are all characters who all prominently use projectiles and explosives in their attacks, such as the Inklings and Link. The penultimate battle is a mirror match against another Snake, referencing Liquid Snake, his cloned twin. The boss of this route is Galleom, likely a reference to the Metal Gear machines themselves.
Ike	The Black-Clad Warriors (漆黒の武者たち, Pitch-Black Warriors)	Refers to Ike's rival, the Black Knight. All of Ike's opponents are in their black alternate costumes. The boss of this route is Master Hand.
Pokémon Trainer	The Future Champion (未来のチャンピオン, Future Champion)	Refers to the player's goal of becoming the Pokémon Champion in the Pokémon games. Like Pikachu, the opponents are all Pokémon. The penultimate battle is against the opposite-gendered Pokémon Trainer, and the final battle is against Mewtwo, immediately followed by Master Hand.
Diddy Kong	Hey, Little Buddy! (バディーコング, Buddy Kong)	A phrase which originated from the manual of Donkey Kong Country and popularized by the Donkey Kong Country TV series; Diddy Kong is also referred to as Donkey Kong's "little buddy" in games such as Brawl and Donkey Kong Country Returns. In each fight, Diddy is accompanied by a protagonist CPU ally whom he assists against corresponding series antagonists or final bosses, such as Mario versus Bowser and Bowser Jr. His penultimate battle pairs him with Donkey Kong against King K. Rool on Jungle Japes. The bosses of this route are Master Hand and Crazy Hand, with Donkey Kong as his partner again.
Lucas	Magic, Sacred Powers, and PSI! (魔力、神力、超能力, Magic Powers, Sacred Powers, Psychic Powers)	Lucas fights characters with potent psychic or magical powers. The penultimate battle is against Mewtwo, possibly in reference to Giygas's original form from EarthBound Beginnings, Giegue. The boss of this route is Master Hand.
Sonic	At the Speed of Sound (疾きこと風の如く, As Fast as the Wind)	The term "speed of sound" is commonly used in the Sonic franchise, including the lyrics of "Escape from the City" from Sonic Adventure 2. Sonic's opponents are either references to characters in his series or to Sonic games in general. Half of Sonic's opponents are also some of the fastest characters in the game. The boss of this route is Master Hand.
King Dedede	Royal Rumble (王ってなぁに？, Whaaat is a King?)	The opponents in this route are characters with royal titles, positions, or monikers, such as Princess Peach and Ganondorf, King of Evil. The boss of this route is Master Hand.
Olimar	Planetary Explorer (いろんな惑星航海日誌, Logbook of Various Planets)	Olimar's opponents are those who are space travelers in their respective series. The penultimate battle is against Alph, or Olimar if the player is using Alph. The boss of this route is Master Hand.
Lucario	Counter Encounters (カウンターアタック, Counter Attack)	Lucario fights characters with counterattacks, with the penultimate battle being against Greninja. The boss of this route is Master Hand.
R.O.B.	Unreadable Expressions (ポーカーフェイスの戦士, Poker Face Warriors)	R.O.B.'s opponents all wear masks or lack expressive faces, including Meta Knight and Wii Fit Trainer. The penultimate battle of this route is a Multi-Man Battle of R.O.B.s, likely referencing the R.O.B. Squad, and the boss of this route is Galleom, also likely due to his role in The Subspace Emissary.
Toon Link	The Teamwork of Courage (勇気のチームワーク, Teamwork of Courage)	All battles involve Toon Link teaming up with two other Toon Links, which is a reference to The Legend of Zelda: Tri Force Heroes, a multiplayer title featuring the Wind Waker artstyle. The boss of this route is Giant Ganondorf, who transforms into Ganon upon defeat.
Wolf	Reunited Roster (参戦ふたたび, Join the Battle Again)	Wolf's opponents are veterans that did not return in Super Smash Bros. 4, starting with the veterans that debuted in Super Smash Bros. Melee. The boss of this route is Galleom. Like Wolf, Galleom debuted in Super Smash Bros. Brawl but did not return in Super Smash Bros. 4.
Villager	Mistake to Underestimate (普通のひとは強かった, Ordinary People were Strong)	Villager fights against characters who appear unsuited for battle, such as Isabelle and Wii Fit Trainer. The boss of this route is Master Hand.
Mega Man	Variable Weapons System: Online! (Dr.マリオの謎, The Mystery of Dr. Mario)	Mega Man's Variable Weapons System allows him to duplicate the abilities of his foes. The Japanese title refers to the Japanese subtitle of Mega Man 2: Dr.ワイリーの謎, The Mystery of Dr. Wily. Mega Man’s opponents in this route are stand-ins for the thematically-armed Robot Masters (such as the Ice Climbers for Ice Man and Captain Falcon for Quick Man) fought on Ω Form stages, with the penultimate boss battle being against Galleom. The final battle is against Dr. Mario, who represents Dr. Wily, and Mewtwo, a reference to the final battle in Mega Man 2 against Wily's Alien hologram.
Wii Fit Trainer	Aerobic Smash (有酸素乱闘, Aerobic Battle)	The opponents are rotund characters, such as King Dedede and Jigglypuff. Dr. Mario appears as a teammate. The boss of this route is Master Hand.
Rosalina & Luma	One Star after Another (星々へ探訪, Searching the Stars)	The opponents are characters from space or other planets. Her penultimate battle is against Bowser, with Mario as her partner, a reference to the final battle against Bowser in Super Mario Galaxy. The boss of this route is Marx, with Mario as her partner again.
Little Mac	Friendly Sparring (異種格闘戦!!, Not-Your-Average Bout!!)	All of Little Mac's opponents are close-range martial artists. The penultimate opponent is Donkey Kong, referencing his boss fight in Punch-Out!! for the Wii. The boss of this route is Master Hand.
Greninja	Your Turn, Greninja! (タイプ攻略リーグ, Type Conquest League)	Greninja fights against characters that represent a certain type: for example, Charizard and Bowser for Fire, and Mewtwo, Ness, and Lucas for Psychic. All battles take place on Pokémon Stadium and Pokémon Stadium 2, except for the penultimate battle, which takes place on Kalos Pokémon League. These likely reference the Gym Battles in the Pokémon games and the eventual battle with the Elite Four. The boss of this route is Master Hand.
Palutena	A Little Divine Intervention (思いつきだけど、鍛えてあげます, I think I should train you)	The English title references a line spoken by Palutena in her debut trailer for Super Smash Bros. 4. Palutena's battles are against characters whose gaming universes have a key emphasis on religion and mythology: Link and Zelda, Cloud, the Belmonts, Shulk, and Bayonetta. The penultimate battle is a multi-man battle of three Pits and three Dark Pits, and the boss of this route is Master Hand.
Pac-Man	Ageless Classic (ファミコンクラシックス, Famicom Classics)	Pac-Man fights classic characters in accordance to their original release date, similar to All-Star Mode in Super Smash Bros. 4. The boss of this route is Dracula, whose fight dates back to the original Castlevania release in 1986, making him the oldest boss battle in the game.
Robin	Thunder and Flames (雷炎闘技, Thunder and Flames Competition)	Refers to two of Robin's tomes, Thunder and Arcfire. Robin's opponents are all pairs of fighters who use fire and electric attacks (for example, R.O.B. and Ken). Robin's penultimate battle is against the opposite-gendered Robin, a reference to the final battle in Fire Emblem Awakening against Grima. The boss of this route is Master Hand.
Shulk	Witness the Monado's Power (「翔」「疾」「盾」「斬」「撃」「機」, Jump, Speed, Shield, Buster, Smash, Machine)	Each of the opponents represent one of Shulk's Monado Arts and are fought in their cycling order in Super Smash Bros. 4. The penultimate opponent is Mega Man, representing Shulk's Monado Enchant Art (represented by the "Machine" kanji), which allows his party to damage Mechon armor with normal weapons in Xenoblade Chronicles. The boss of this route is Master Hand.
Bowser Jr.	Mama Peach, Where Are You? (あなたはピーチママ？, Are you Mama Peach?)	Refers to how Bowser Jr. thinks Peach is his mama in Super Mario Sunshine. All of Bowser Jr.'s opponents are princesses, some of which are teamed up with their love interest (or in Lucina's case, her father). The penultimate battle is against Mario and Peach. The boss of this route is Master Hand.
Duck Hunt	Dog, Duck, Zapper (けものブラザーズ, Animal Brothers)	Refers to the elements of Duck Hunt's character. The Japanese title may be a reference to the franchise Kemono Friends (けものフレンズ). Duck Hunt's opponents are all animals or Mii Fighters with animal costumes. The boss of this route is Rathalos, whose home series title of Monster Hunter aligns with the character and series name of Duck Hunt.
Ryu	Seeking a Challenge (俺より強いファイターに会いに行く, I'm going to meet a fighter stronger than myself)	Referencing the single-player mode of Street Fighter II; all battles are one-on-one stamina fights on Ω form stages. All of Ryu's opponents reference a Street Fighter II character with their costume choice, stage, and music. The bosses of this route are Master Hand and Crazy Hand (possibly a stand-in for M. Bison for the similarity of one of their moves to the Psycho Crusher and the usage of his theme for the fight), with Ken as the player's partner.
Ken	Red-Hot Rivalry (燃えるライバル, Heated Rival)	Refers to Ken's status as Ryu's rival, which is further cemented by Ryu being his penultimate opponent, notably on the Ω form Suzaku Castle stage (mirroring the start of Ryu's Classic Mode). All opponents are rivals to the main character to some degree. The boss of this route is Crazy Hand.
Cloud	A Ride? Not Interested. (乗り物...? 興味ないね, A vehicle...? Not interested)	References Cloud's motion sickness; all his battles are on vehicle stages that travel. The title is also a reference to his catchphrase "Not interested" (興味ないね). The boss of this route is Master Hand.
Corrin	Between White and Black (白と黒の狭間で, Between White and Black)	This title originated as an epithet given to Corrin on a Fire Emblem Cipher trading card released in 2018, alluding to Corrin's wish to unite the Hoshido and Nohr families. Further referencing this, Corrin's opponents alternate between black and white alternate costumes, for instance Round 5 with a multi-man battle of six Mr. Game & Watches (three of them black and three of them white). The boss of this route is Master Hand.
Bayonetta	The Requiem of Fallen Wings (散りゆく翼の鎮魂歌, Requiem of Scattering Wings)	References the epilogue of Bayonetta: "Requiem". Bayonetta fights winged characters, and the final battle is against a Giant Palutena, a reference to the final battle in Bayonetta against Jubileus. The Giant Charizard opponent 4 battles in is also a reference to the battle against Fortitudo who you fight in Chapter 4 of Bayonetta.
Inkling	An Inkredible Journey (イカした色に染め上げろ, Dye It With Trendy Colors)	The English title makes an ink-related pun, much like the dialogue in Splatoon itself. Similarly, the Japanese title makes a pun with イカした (which means "trendy") and イカ (which means "squid"). Each stage and set of fighters represents a particular color: for example, a pink Greninja on Magicant or a giant light blue Yoshi on Summit. The boss of this route is Marx, who has multiple rainbow colors on his wings and, in Kirby Super Star Ultra, utilizes attacks that grant Kirby the Paint ability.
Ridley	It Can't Be! Space Pirates! (銀河の脅威！スペースパイレーツ, Threats of the Galaxy! Space Pirates)	Refers to Ridley's title as the leader of the Space Pirates, while "It can't be!" is one of Samus's lines of dialogue upon seeing Ridley in Metroid: Other M. Ridley fights characters who pilot their own spaceships, such as Samus, Olimar, and Meta Knight. The boss of this route is Master Hand.
Simon	Smash-vania (悪魔城スマブラ, Demon Castle Smash Bros.)	The title is a portmanteau with the names of the Smash and Castlevania series. The Japanese version makes a similar pun with the Japanese title of the Castlevania franchise, 悪魔城ドラキュラ (Demon Castle Dracula). Simon fights monstrous characters that reference the beasts he battles in the Castlevania games; however, the penultimate battle is against his descendant, Richter, similar to his appearance as a boss in Castlevania: Symphony of the Night. The boss of this route is Dracula.
Richter	Smash Echoes (ダッシュファイターズ, Dash Fighters)	Both the English and Japanese names refer to Echo Fighters, which make up all of Richter's opponents on this route. The boss of this route is Dracula.
King K. Rool	Super Heavyweight Class (ヘビー級のキケンなヤツら, Dangerous Heavyweight Guys)	The title uses boxing terminology, referencing the final boss battle of Donkey Kong 64. King K. Rool's opponents are the heaviest characters in the game, with most of them being antagonists. His penultimate battle is with his nemesis, Donkey Kong. The boss of this route is Galleom.
Isabelle	Best in Show (紅23点, 23 Red Flowers)	The English name refers to conformation shows. The Japanese name is a pun on the phrase 紅一点, which translates to "one red flower (in a field of green)" but figuratively means "the only woman in a group of men". All of Isabelle's allies and opponents are female save for Popo of the Ice Climbers in Round 4, for a total of 23 female participants. The boss of this route is Master Hand.
Incineroar	Burning Pro Wrestling Spirit! (こわもてヒールのプロレスリング, The Pro Wrestling of a Hard-faced Heel)	All battles take place on Boxing Ring in three different forms and feature opponents who use wrestling moves, such as Bowser, Donkey Kong, and King K. Rool. The penultimate battle is a mirror match against another Incineroar, and the bosses of this route are Master Hand and Crazy Hand, with Greninja as the player's partner.
Piranha Plant	New Bloom (花の新人王, Floral Rookie of the Year)	All of the opponents are the newcomers for the base game. It also references Piranha Plant being the last newcomer revealed prior to the games launch. Each stage is based on the reveal trailer for one particular newcomer, in the order in which they were released. The boss of this route is Rathalos likely because it is a boss from a newly represented universe.

Unlocking criteria

All of the eight starter characters from the original Smash Bros. and Ultimate have their own character unlock trees, each with eight characters to unlock, except for Pikachu, who has seven. Completing Classic Mode with any character in a given tree will challenge the player to a Challenger Approaching duel for the next available character from the top of their tree down, as indicated on the table below. For example, beating Classic Mode with either Link or Young Link will then trigger the fight to unlock King K. Rool. If K. Rool is already unlocked (or his Challenger Approaching duel has already been issued), Ice Climbers will be unlocked next.

When all the characters in a tree are unlocked, completing Classic Mode with those characters will unlock the next available character in Mario's tree, then Donkey Kong's, and so on. Unlock stages and music are the same as in Vs. Mode. Notably, all clones, semi-clones, and pseudo-clones except for Ganondorf, Roy, and Chrom are in the same tree as the character they are based on.

Unlock Order
1st
2nd
3rd
4th
5th
6th
7th
8th

Gallery

The mural that is displayed when selecting the difficulty level.

Trivia

• On Classic Mode, this is the first Super Smash Bros. game to:
  • Feature predetermined bosses based on their own universe on the final round.
  • Not always have Master Hand and Crazy Hand as the final boss.
  • Grant the characters different routes.
  • Have separate theme songs for Master Hand's solo fight, Crazy Hand's solo fight, and their tag-team battle.
  • Have a health bar shown for the boss fights instead of percentages (also in the boss fights in World of Light).
  • Have CPU allies in the final boss battle.
  • Not allow the option of choosing the difficulty higher than 5.0 at the start of an attempt.
  • Give the option to continue without lowering the difficulty (via Classic Tickets).
  • Continue without restarting the current battle (similar to arcades).
  • Having predefined music for a stage instead of picking one at random from that stage's music pool for certain routes (i.e a certain track from Splatoon playing in every stage outside of Moray Towers in Inkling's route, including the final boss).
• Ryu is the only character to use stamina battles in his Classic mode route.
• Jigglypuff and Bayonetta are the only characters to fight against another fighter instead of a unique final boss.
  • Bowser and Mega Man do fight against a unique boss, albeit as the penultimate battle rather than the final battle.
• Donkey Kong is the only character to face Master Hand and Crazy Hand on a stage other than Final Destination, instead facing them on New Donk City in Ω form.
• Master Hand is the most common unique boss. He's fought by 34 characters normally (with Crazy Hand appearing at higher intensities), by 8 characters in a guaranteed tag team with Crazy Hand, and by 2 characters alone (both Pokémon characters) after fighting Mewtwo.
  • Conversely, Giga Bowser and standalone Crazy Hand are tied as the least common unique bosses, with 2 appearances each.
• Like in Super Smash Bros. 64 and Super Smash Bros. for Nintendo 3DS, this Classic Mode does not have Clear Movies for each character.
• The banner represents every playable fighter in the base game in their default color scheme / costume, with the exception of Corrin, who is represented by the default female variant instead.
  • Despite appearing in the banner, the Mii Fighters themselves are not playable in this Classic Mode.
• Big Battlefield, Paper Mario, Super Mario Maker, Yoshi's Story, Mute City SNES, WarioWare, Inc., Hanenbow, PictoChat 2, Balloon Fight, and Tomodachi Life all do not appear in any character's Classic Mode route in any form.

See also

• 1P Game
• Classic Mode (SSBM)
• Classic Mode (SSBB)
• Classic Mode (SSB4-3DS)
• Classic Mode (SSB4-Wii U)